Transportation vehicle sound insulation process and device
    3.
    发明授权
    Transportation vehicle sound insulation process and device 有权
    运输车辆隔音过程及装置

    公开(公告)号:US08276709B2

    公开(公告)日:2012-10-02

    申请号:US13140577

    申请日:2009-12-16

    IPC分类号: E04B1/82

    CPC分类号: B60R13/08 Y10T29/49826

    摘要: A sound insulation process comprises (a) providing at least one sound insulation device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the sound insulation device between an acoustic source area and an acoustic receiving area of a transportation vehicle.

    摘要翻译: 隔音工艺包括(a)提供至少一个隔音装置,其包括至少一个隔音屏障,包括设置在具有第一密度的第一介质中的至少一个基本上周期性的结构阵列,该结构由具有第一介质的第二介质制成, 第二密度不同于第一密度,其中第一和第二介质中的一个是具有纵向声波的传播速度和横向声波的传播速度的粘弹性介质,纵向声波的传播速度至少为 是横向声波的传播速度的约30倍,其中第一和第二介质中的另一个是粘弹性或弹性介质; 和(b)将隔音装置插入到运输车辆的声源区域和声音接收区域之间。

    Transportation Vehicle Sound Insulation Process and Device
    4.
    发明申请
    Transportation Vehicle Sound Insulation Process and Device 有权
    运输车辆隔音过程和装置

    公开(公告)号:US20110247893A1

    公开(公告)日:2011-10-13

    申请号:US13140577

    申请日:2009-12-16

    IPC分类号: B60R13/08 B23P17/04 E04B1/74

    CPC分类号: B60R13/08 Y10T29/49826

    摘要: A sound insulation process comprises (a) providing at least one sound insulation device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the sound insulation device between an acoustic source area and an acoustic receiving area of a transportation vehicle.

    摘要翻译: 隔音工艺包括(a)提供至少一个隔音装置,其包括至少一个隔音屏障,包括设置在具有第一密度的第一介质中的至少一个基本上周期性的结构阵列,该结构由具有第一介质的第二介质制成, 第二密度不同于第一密度,其中第一和第二介质中的一个是具有纵向声波的传播速度和横向声波的传播速度的粘弹性介质,纵向声波的传播速度至少为 是横向声波的传播速度的约30倍,其中第一和第二介质中的另一个是粘弹性或弹性介质; 和(b)将隔音装置插入到运输车辆的声源区域和声音接收区域之间。